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<blockquote data-quote="ravendarat" data-source="post: 2291258" data-attributes="member: 568925"><p>Sorry to step on your toes man but this is a horrible Idea. His charging system cannot keep up so you wanna add something else that needs to be charged? Nope. The extra battery would be good if you need to run the system for an extended period with the car off or if you were just trying to compete and do big burps but in your case its not gonna help ya. 4 gauge is sufficent for what your running but even if it wasnt having inadequite wire from the battery to your amp would not cause your lights to dim. You solution is the Big 3 and an altenator. Now it sounds like you did the big 3 so the altenator is your next step. Find out if that altenator is 160 at idle or not and how big is the one in there. Most domestic cars come with a charging system at 80% strain. so if the car needs 80 amps with all accessories on then the car generally would come with a 100 amp alt. If your amp is fused with 90 and you push it real hard then I would be expecting that you could be drawing around 80 amps at high volumes with it. If thats the case than an altenator that runs at approximatly 160 amps IDLE would be fine. But if it is only gonna produce 160 amps at 3500 rpm and then say 100 at 800 rpm than I would keep looking for something else.</p></blockquote><p></p>

[QUOTE="ravendarat, post: 2291258, member: 568925"] Sorry to step on your toes man but this is a horrible Idea. His charging system cannot keep up so you wanna add something else that needs to be charged? Nope. The extra battery would be good if you need to run the system for an extended period with the car off or if you were just trying to compete and do big burps but in your case its not gonna help ya. 4 gauge is sufficent for what your running but even if it wasnt having inadequite wire from the battery to your amp would not cause your lights to dim. You solution is the Big 3 and an altenator. Now it sounds like you did the big 3 so the altenator is your next step. Find out if that altenator is 160 at idle or not and how big is the one in there. Most domestic cars come with a charging system at 80% strain. so if the car needs 80 amps with all accessories on then the car generally would come with a 100 amp alt. If your amp is fused with 90 and you push it real hard then I would be expecting that you could be drawing around 80 amps at high volumes with it. If thats the case than an altenator that runs at approximatly 160 amps IDLE would be fine. But if it is only gonna produce 160 amps at 3500 rpm and then say 100 at 800 rpm than I would keep looking for something else. [/QUOTE]

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